Measuring And Adjusting The Fuel Level - Yamaha YZF-R6 99 Service Manual

CARBURETORS
EAS00497
MEASURING AND ADJUSTING THE FUEL
LEVEL
1. Measure:
S fuel level a
Out of specification ! Adjust.
Fuel level (below the mark on
the body)
17.5
a. Stand the motorcycle on a level surface.
b. Place the motorcycle on a suitable stand to
ensure that the motorcycle is standing
straight up.
c. Install the fuel level gauge 1 onto the fuel
drain pipe 2 .
Fuel level gauge
90890-01312
d. Loosen the fuel drain bolt 3 .
e. Hold the fuel level gauge vertically next to the
line 4 on the float chamber.
f. Measure the fuel level a .
NOTE:
Fuel level readings should be equal on both
sides of the carburetor assembly.
2. Adjust:
S fuel level
a. Remove the carburetor assembly.
b. Check the needle valve seat and needle
valve.
c. If either is worn, replace them as a set.
d. If both are fine, adjust the float level by slight-
ly bending the float tang 1 .
e. Install the carburetor assembly.
f. Measure the fuel level again.
g. Repeat steps (a) to (f) until the fuel level is
within specification.
6-12
CARB
18.5 mm